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COMMON ENGINE TROUBLES


Most Common troubles mentioned below:

 

 
  • Engine fails to start.

  1. Ignition switch off.
  2. Fouled spark plugs or Faulty breaker points or faulty condenser.
  3. Current may not be flowing due to loose battery terminals or weak battery.
  4. Fuel supply stopped or fuel tank empty or air lock in diesel fuel line.
  5. Too rich mixture due to carburetor flooding.
  6. Faulty diesel pump and injection nozzle.
  7. Poor compression, leaky valves, worn piston rings.
  8. Incorrect valves timing or ignition.















 
  • Engine fails to develop full power.

  1. Air cleaner clogged.
  2. Poor compression.
  3. Carburetor too rich or too lean, or choke stuck or throttle lever loose.
  4. Diesels fuel filters dirty or injection system trouble.
  5. Incorrect spark timing.
  6. One or more cylinders misfiring.
  7. Overheated engine.
     
  • Engine overheats.

  1. Low radiator water level or radiator fan belt loose.
  2. Thermostat valve stuck, water pump not working, radiator shutter closed.
  3. Carburetor too lean or improperly adjusted diesel injection system.
  4. Incorrect engine lubrication- wrong grade oil, low level, diluted oil, clogged strainer.
  5. Overloading.
     
  • Engine smokes.

  1. Rich mixture.
  2. Overloading.
  3. Diesel fuel injection timing late.
  4. Improper fuel.
  5. Excess oil reaching combustion chamber- blue smoke.
     
  • Engine knocks.

  1. Overheated engine.
  2. Spark timing or fuel injection too far advanced.
  3. Carburetor too lean.
  4. Excessive carbon deposits.
  5. Incorrect type of fuel.
  6. Incorrect type of spark plug.
     
  • Excessive fuel consumption.

  1. Fuel line leaks.
  2. Carburetor adjusted too rich or faulty injectors.
  3. Engine in poor mechanical condition.
  4. Dirty air cleaner.
     
  • Excessive oil consumption.

  1. Wrong grade of oil or badly diluted oil.
  2. Engine temperature too high.
  3. Oil leaks through lines, gaskets and bearings.
  4. Oil levels too high.
     
     

 

 

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